Muscular dystrophy (MD) is a group of genetic diseases involving progressive weakness and degeneration of the muscles that control movement. In some forms of MD, the heart muscles and other involuntary muscles, as well as other organs, are affected. There are 9 distinct types of MD. Myotonic MD is the most common form among adults, while Duchenne MD is the most common form among children (it affects only boys). Some are severe diseases at birth that lead to early death. Others follow very slow progressive courses over many decades and may be compatible with a normal lifespan.
Signs and Symptoms
Myotonic muscular dystrophy (which affects adults) is accompanied by the following signs and symptoms:
- Delayed muscle relaxation after contraction
- Impaired nourishment of nonmuscular tissue
- Weaknesses in the facial muscles, arms and legs, and muscles affecting speech and swallowing
- Baldness in men and women
- Intellectual impairment
- Respiratory problems
- Heart abnormalities in early adulthood
Although Duchenne MD is present at birth, signs and symptoms do not usually appear until the child is 3 - 5 years of age. They include:
- Delayed motor movements
- Frequent falls
- Difficulty running, jumping, and getting up from a sitting or lying down position
- Large calf muscles
- Weakness in the lower extremities
- Cognitive impairment
- Cardiac impairment
Breathing difficulties and a chronic disorder of heart muscles develop during adolescence, usually after the individual becomes wheelchair bound.
What Causes It?
MD is caused by gene mutations that are particular to each form of the disease. It is an X-linked disease, meaning mothers are the carriers of the disease.
Who's Most At Risk?
In two thirds of cases of MD, the person has a family history. In one third of cases, there is no family history.
What to Expect at Your Provider's Office
If you have symptoms of MD, you should see your health care provider. Diagnosis depends on sophisticated testing, such as lab tests, imaging, muscle biopsy, and other procedures.
The goal of a treatment plan is to maintain the person's optimal physical and emotional health by preventing joint and spinal deformities. This prolongs the ability to walk for as long as possible. Assisted breathing is introduced as needed, and lifelong physiotherapy is necessary. Orthopedic devices may be needed for support. Hydrotherapy, such as continuous tub baths, may help maintain a full range of joint motion. Physical, occupational, respiratory, and speech therapy may also help patients manage the symptoms of MD. Some clinicians recommend submaximum aerobic exercise, especially in the early course of the disease.
Your health care provider may prescribe the following medications:
- Phenytoin, quinine, and procainamide, for delayed muscle relaxation in myotonic MD
- Prednisone, to improve muscle strength in Duchenne MD
Some patients may experiene behavioral issues, such as hyperactivity, for a few hours after medication is given.
Surgical and Other Procedures
Surgery can help some people who have MD.
- Spinal surgery to correct scoliosis (curvature of the spine)
- Tenotomy to release contractures (painful positioning of the joints) of the hips, knees, and Achilles tendon, which is near the back of the foot.
Complementary and Alternative Therapies
A comprehensive treatment plan for MD may include a range of complementary and alternative therapies.
Nutrition and Supplements
These nutritional tips may help reduce symptoms:
- Try to eliminate potential food allergens, including dairy, wheat (gluten), corn, soy, preservatives, and food additives. Your health care provider may want to test for food sensitivities.
- Eat antioxidant foods, including fruits (such as blueberries, cherries, and tomatoes) and vegetables (such as kale, spinach, and bell pepper).
- Avoid refined foods, such as white breads, pastas, and sugar.
- Eat fewer red meats and more lean meats, cold water fish, tofu (soy, if no allergy), or beans for protein.
- Use healthy oils in foods, such as olive oil or coconut oil.
- Reduce or eliminate trans fatty acids, found in such commercially baked goods as cookies, crackers, cakes, French fries, onion rings, donuts, processed foods, and margarine.
- Avoid coffee and other stimulants, alcohol, and tobacco.
- Drink 6 - 8 glasses of filtered water daily.
- Exercise lightly, if possible, 5 days a week.
You may address nutritional deficiencies with the following supplements:
- Omega-3 fatty acids, such as fish oil, 1 - 2 capsules or 1 tablespoonful oil 1 - 2 times a day, to help decrease inflammation and improve immunity. Fish oils may increase bleeding in sensitive individuals, such as those taking blood-thinning medications (including aspirin).
- A multivitamin daily, containing the antioxidant vitamins A, C, E, the B-vitamins and trace minerals, such as magnesium, calcium, zinc, and selenium.
- Calcium and vitamin D supplement, 1 - 2 tablets daily, for support of muscle and skeletal weakness.
- Coenzyme Q10, 100 - 200 mg at bedtime, for antioxidant, immune, and muscular support.
- N-acetyl cysteine, 200 mg daily, for antioxidant effects. Coenzyme Q10 may interact negatively with certain blood thinning medications, such as warfarin (Coumadin) and aspirin.
- Acetyl-L-carnitine, 500 mg daily, for antioxidant and muscle protective activity. There is some concern that acetyl-L-carnitine may interfere with thyroid hormone, and that it may not be appropriate for people who have a history of seizures. Speak to your doctor.
- Amino acids, including glutamine and arginine for muscle protection.
- Probiotic supplement (containing Lactobacillus acidophilus), 5 - 10 billion CFUs (colony forming units) a day, for maintenance of gastrointestinal and immune health. Some probiotic supplements may need refrigeration. Check the label carefully.
- Creatine, 5 - 7 grams daily, when needed for muscle weakness and wasting. Certain kidney drugs may interact with creatine. Speak to your doctor to make sure your kidneys are healthy enough to handle that amount of creatine. Your doctor may want to periodically monitor kidney function.
- L-theanine, 200 mg 1 - 3 times daily, for nervous system support.
Herbs are one way to strengthen and tone the body's systems. As with any therapy, you should consult with your health care provider before starting any treatment. You may use herbs as dried extracts (capsules, powders, teas), glycerites (glycerine extracts), or tinctures (alcohol extracts). Unless otherwise indicated, make teas with 1 tsp. herb per cup of hot water. Steep covered 5 - 10 minutes for leaf or flowers, and 10 - 20 minutes for roots. Drink 2 - 4 cups per day. You may use tinctures alone or in combination as noted.
- Green tea (Camellia sinensis) standardized extract, 250 - 500 mg daily, for antioxidant and immune effects. Use caffeine free products. You may also prepare teas from the leaf of this herb.
- Rhodiola (Rhodiola rosea) standardized extract, 100 - 600 mg daily, for antioxidant, antistress, and immune activity.
Few studies have examined the effectiveness of specific homeopathic remedies. A professional homeopath, however, may recommend one or more of the following treatments for muscular dystrophy based on his or her knowledge and clinical experience. Before prescribing a remedy, homeopaths take into account a person's constitutional type -- your physical, emotional, and intellectual makeup. An experienced homeopath assesses all of these factors when determining the most appropriate remedy for a particular individual.
- Arnica -- for relief from muscle pain or spasm
- Calcarea carbonica -- for cramps of the lower extremities, particularly in those who are overweight and easily chilled
- Magnesia phos -- for muscle pain and spasm with cramps and severe, shooting pain
Regular massage is important for reducing spasm and muscle contractions.
The outlook for people with MD varies, depending on the type and severity of the disease. In mild cases, the disease may progress slowly, and the person may have a normal lifespan. In more severe cases, there is a more marked progression of muscle weakness, functional disability, and loss of ability to get around. Duchenne MD patients usually live into their 20s, and myotonic MD patients usually live longer. In most cases, individuals with MD die of infections, respiratory problems, or cardiac failure.
MD patients undergo electrocardiography, pulmonary function studies, and chest radiographs annually along with tests to monitor their swallowing function.
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